Steam feeding mechanism.



No. 683,005. Patented Sept. I7, I90l. R. H. F. SEWALL.

STEAM FEEDING MECHANISM.

(Application led Dec, 31, 1900.)

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ROBERT I-I. F. SEWALL, OF NEW ORLEANS, LOUISIANA, ASSIGNORVOF ONE- HALFTO CHAS. F. DE GANAI'IL, OE TAMPICO, MEXICO.

STEAM FEEDING 'IVI ECHANISIVI.

SEECIFICATION forming part of Letters `l'atent No. 683,005, datedSeptember 17, 1901.

Application tiled December 3l, 1900l Serial No. 411669 iN0 DlOdl-l .To@ZZ whom i 11m/y concern:

Beit known that I, ROBERT H. F. SEWAL'L, of New Orleans, in the parishof Orleans and State of Louisiana, have invented certain new and usefulImprovements in Steam Feeding l\IechanismsJ of which the following is aspecification. l My invention in its genelic nature refers to injectors,inspirators, steani-siphons, and

1o the like devices, and particularly to the funnels orother fittingsthereof for the openings by the action of sand and gravel, and suchaction not only impairs the utility of the appliance, but necessitatescostly repairs and loss of time by reason of theirinoperation, as wellas causing great inconvenience.

My invention primarily seeks to provide 3o mechanisms ofthe character'noted havin the fittings, usually` termet combining-tubes and funnelsmade of glass or other vitreons material not susceptible of beingreadily worn or cut away by action of sand and gravel thereon, and inits more subordinate fea-` tures my invention coinprehends, in aiiuidfeed for boilers and the like, an improved funnel-like iitting andmeans for practically applying the same in an operative position,

4o said means including certain mechanical combinations and novelarrangement of parts, all of which will hereinafter be fully`explained,and particularly pointed out in the appended claims, referencebeing had tothe accompanying drawings, in which- Figure l is alongitudinal section of an injector equipped with my improvement.. Fig.2 is an enlarged section of a portion thereof g hereinafter referred to.Fig. 3 is a section on 5o the line 3 3 of Fig. 2. Fig. 4 is a detailperspective view of one of the funnelsor fittings detached. In carryingout my invention I use asa suby stitute for the ordinary brass fittingsa fit-l ting formed of a glass or other vitreous material and having itscasing-engaging portions entirely freedot external threadways or otherunnecessary offsets that present a sur-' face capable of being quicklyworn out by action of sand and gravel or other gritty de- 6o posits inthe passing iiuid.

'In applying my improvements to the ordinary types of injectors,inspirators,and the like the fittings are shaped to suit the particularcharacter of casing to which they are t0 be applied, but in everyinstance said fittings are so constructed as 'to be placed in positionwithout the necessity of forming them with external or internalroughened or' irregular surfaces, such asscreW-threads and 7o the like.n

In the drawings I have illustrated a-siinple form of a double injectorand in` a general way shown howA the fittings may be securely held inposition without changing the inter- 75 nal or external construction ofthe casing; but I desire it understood that the detailed manner in whichthe several fittings are c-.

operatively held withinthe casing, as shown, may be readily modified tosuit the character 8o of the casings to which they are to loe appliedWithout departing from the scope ot' the appended claims. v

Referring now to the accompanying drawings, in which like charactersindicate like parts in all the figures, 1 designates theinjector-casing, which in the present type coinprises a body part la,having the laterallyextending water-inlet 2, the overow 3, and overliowand controlling valve 4, valve-cham- 9o ber 4a, and the outlet to boiler5.

6 designates the cap end of the casing, se-

cured to the body by the screw-bolts 7 and having the two discharges 6C, that communicate with the interior of the body 1', 95 and formed withthe usual steam-inlet 6, said cap portion in the construction shown alsohaving a duplex valve mechanism 8 for controlling the discharges (ia andadapted for proper adjustment by the shifting lever ,9, 19o

l members 9 9u.

ll designates the glass sleeve for the end of the neck w, formed with avalve-seat 11a and tubular valve-stem shank 1lb, it also having 'anannular iiange l1c for engaging the shoulder IlX on the neck that holdsthe sleeve ll from being forced inward, the sleeve being held fromblowing outward by the inwardly projecting end of the dis-` charge-pipesection or sleeve ll to boiler, as l shown. Ther Water inlet pipemember, which is also formed of glass or analogous material, is heldsecure by the gland cap or nut l2. The fittings a I), forming theoverflow-nipple and the valve-stein seat, respectively, may also besecured by cap-screws, as shown.

The funnels in the construction shown and indicated by A, B, C, and Dareof glass or like material. The members C and D form the ejector-nozzlesfor the outlets 6a G and each have a `valve-seat c CZ for the duplexvalves 8a Sn. Each of the members C and D has a smooth hub-like portionc d', that fit the smooth bores or openings 6 6, and the hubs c' CZ'terminate in annular flanges c2 d2, adapted to fit annular seats 1y inthe adja: cent end of the casing-body l, in which they are clamped bythe cap 'when `the parts are assembled, such arrangement providing forholding the funnels C D firmly in position and also for permitting oftheir ready removal in case of breakage, risc.

A B designate main funnels or combiningtubes that receive the ejectionsfrom the members C D. The combining-tube A has an annular flange a,"thatts a corresponding seat ctx in the portion lX of the casing, While thecombining-tube B has a similar flange b, that tits the seat hX in theweb portion 1Z of the casing. The flanges a and b keep the funnels frommoving-in the direction indicated bythe arrow 14 in Fig. l, by referenceto which it will also be seen the ends a5 h5 of the two combining-tubesA and B project over the ejected or nozzle ends of the members C D, andthe said ends a5 b5 have pendent integral lugs a6 b, that engagestop-lugs c5 d5, integrally formed on the nozzle ends of the members CD, the said lugs 011 the opposing ends of the members A, B, C, and Dserving to hold the members A and B from moving forward in the directionindicated by arrow 15. t

From the foregoing, taken in connection with the accompanying drawings,it will be noticed that by constructing the fittings as set out I amenabled to substitute funnels and combining-tubes of glass or other likematerial for the usual brass funnels and combining-tubes Withoutithenecessity of cutting threads. This not only reduces the cost ofconstructing the complete appliance very materially, but also by reasonof the smooth joints prolongs'the life of the same. In case of amechanism constructed on the plan` shown the funnels A and B can beconveniently set in place when the cap-piece of the casing is removedand the members G and D likewise fitted in the cap-piece, and afterbeing thus fitted by setting up the cap-piece on the body l and makingthe same fast the lugs on the members A, B, C, and D will engage, andthereby hold the members A and B secure and from leaving their seats atthe discharge end.

Having thus described my invention,what I claim, and desire to secure byLetters Patent, is

l. In a device of the class specified, a casing having a portioninteriorly thereof provided with an annular seat, aweb in the casd inghaving an annular seat, funnels in the casing provided with annularflanges snugly fitted in said seats, additional funnels pro jecting intothe other funnels, provided with lugs to prevent motion of thefirst-mention`ed funnels, in one direction, and a cap-piece removablysecured to the casing, having seats to receive the outer ends of saidadditional funnels. Y v

2. In a device of the class specied, a casing having aninterior rigidportion, provided With an annular seat, a web inside the casing alsohaving an annular seat, and the end of the casing having annular seats,funnels provided with annular fianges tit-ted snugly in the twofirst-mentioned seats, and havinginterior lugs at one end, additionalfunnels projecting'into the other funnels having lugs to be engaged bythe other lugs and also having flanges to fit the annular seats in theend of the casing, and a cap detachably connected to the casing, havingseats to receive the additional funnels.

ROBERT II. F. SEWALL.

Witnesses:

W. W. GoLDsMITH, E. F. THOMAS,

ICO

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